Home / 19,369.12-29,059.44-8,989.60

Finding the Fourth Proportional to 19,369.12, 29,059.44 and 8,989.60

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Solution

The fourth proportional to 19,369.12, 29,059.44 and 8,989.60 is: 13,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,369.12 : 29,059.44 = 8,989.60 : x
  2. Step 2: Convert to fraction form
    19,369.12/29,059.44 = 8,989.60/x
  3. Step 3: Cross multiply
    19,369.12x = 29,059.44 × 8,989.60
  4. Step 4: Simplify right side
    19,369.12x = 261,232,741.82
  5. Step 5: Solve for x
    x = 261,232,741.82/19,369.12
  6. Step 6: Final answer
    x = 13,487.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.